Genetic and Silvicultural Foundations for Management

Silvicultural Research

Long-Term Productivity

Experiments on three sites address important
questions about the long-term effects of management on site productivity,
nutrient budgets, and soil processes. These studies are part of the
Pacific Northwest component of The
North American Long Term Soil Productivity Experiment network. The
studies are:

Oregon White Oak

Silvicultural Options for Harvesting Young-Growth
Douglas-fir Forests

This operational-scale Silvicultural
Options Study on the Washington DNR Capitol State Forest examines
six different harvest treatments. The issues leading to the development
of this study are discussed in an edition of the PNW Research Station's
Science Findings.

Alternative Silvicultural Treatments for
Young Plantations in the Pacific Northwest

Young conifer plantations can be treated in ways that
will result in different stand structures, tree characteristics, and
vegetation development in the future. Five treatments are being evaluated
at two sites:

Managing for Late-Successional Attributes

The
Olympic Habitat Development Study is a cooperative study with the
Olympic National Forest and the Olympic Natural Resources Center.
The study tests alternative treatments in 30- to 70-year-old forests
to accelerate the development of stand structures and plant and animal
communities associated with late-successional (old-growth) forests.
Additional information on variable-density
management is available.